<p><strong>Parameters</strong></p>
<dl>
<dt><em>dataSourceUrl</em></dt>
<dd>[<em>Required</em>, <em>String</em>] URL to send the query to. The data source should
expose this URL in some way; for example, to get the dataSourceUrl from a
<a href="http://docs.google.com">Google Spreadsheet</a>,
do the following:
<ol>
<li>In your spreadsheet, select the range of cells.</li>
<li>Select 'Insert' and then 'Gadget' from the menu.</li>